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Chikusa Kakimoto is a quiet and loyal subordinate of Mukuro, being one since childhood, joining him along with Ken Joshima. He is a professional assassin, using his deadly "Hedgehog" yo-yo to spray his opponents with poisoned needles. He is also able to expertly control where he throws his weapons to accurately shower his opponent with them. He is usually referred to as "Kaki-pi" by Ken and M.M
He was born into Estraneo Famiglia along with Ken and Mukuro and was one of the children who were experimented on when the Famiglia invented the Possession Bullet and were as a result horribly persecuted by other Mafia Famiglias; however, this changed when Mukuro saved him and Ken by annihilating the entire Famiglia. Since then, they became Mukuro's loyal subordinates.
He is a tall teenager with green Kokuyo Middle uniform, glasses, and a white beanie with a barcode on his left cheek and a bandage on his right. In his casual clothes, he wears a hooded jacket similar to Ken's and green pants with a small yellow scarf around his neck. In the future, he was seen wearing a suit over a white shirt with a tie.
Unlike Ken, Chikusa rarely speaks and is mostly quiet. He talks only if necessary; though, he is often shown to argue with Ken and occasionally shows a sarcastic, mocking side towards him. Like Ken, he also cares for Chrome, but never shows this openly and sometimes "teases" Ken, who always denies his feelings of concern for Chrome. He and Ken have been Mukuro's subordinates since childhood and they are extremely loyal to him. Chikusa will follow any of Mukuro's orders and is willing to sacrifice his own life for Mukuro. He is generally portrayed as a calm person, possibly the calmest of Mukuro's subordinates.
When Tsuna was running away with Fuuta from the Todd Famiglia members, Chikusa was seen at a vending machine as Tsuna ran by with Fuuta on his back, recognizing the latter as the Ranking Fuuta, and later on curiously gazing up when Reborn fired the Dying Will Bullet at Tsuna, as it made a rather loud sound. Afterwards, he returned to Kokuyo Land and reported to Mukuro that he found Ranking Fuuta.
Chikusa first appears with Ken observing his battle with someone on the list. He later corners Gokudera in a Namimori Shopping District. He then engages in battle with the Vongola, but underestimates the third-ranked on the list, resulting in him taking on serious damage. He proves to have a very resilient body as he is able to take them and incapacitate Gokudera when he tries to save Tsuna. After he attempts to attack Gokudera's savior, Yamamoto, one of his Hedgehog Yo-Yos are sliced; when he loses it, he decides to retreat and take a shower.
Kokuyo Land InvasionFor the first half of the Invasion, Chikusa is unseen, as he is recuperating from his battle earlier with Gokudera. However, he comes back in the latter half of the Arc to battle Gokudera on Mukuro's orders after the group (without Yamamoto) proceeds into the main building. He battles Gokudera until his side-effects kick-in; along the way, proving again, he can take large hits by being hit dead-on with dynamite explosions and only wobbling. At this point, Ken breaks through the glass, Gokudera is resting on, and deals a heavy blow to him. This allowed him and Chikusa ample time to finish him off. The two look on as Gokudera rests helpless at the base of a flight of steps. But, they allow him time to release Hibari who defeats them both off-screen.
After Mukuro's Possession Bullet is revealed, Chikusa and Ken come back to aid Gokudera and Bianchi, as the four are being controlled by him. However, after Tsuna receives his X-Gloves from Leon, he easily defeats both of them. This ended Chikusa's involvement in the Arc, and his last appearance was when he was dragged off by the Vendice along with Ken and Mukuro.
Chikusa and Ken watched Hibari's fight under Mukuro's order. During Gola Mosca's rampage, they saved Chrome from the mines that were buried within the ground that she accidentally stepped on. This left them unguarded and trapped between Gola Mosca and rifle pointed at them. Fortunately, Tsuna arrived in time, protecting the three of them from both attacks.
He and Ken secretly followed Chrome to the last match, but was found out by the Cervello and was told to stay and watch outside the battlefield along with Reborn, Collonelo, Basil, and Shamal until the match ends. He stopped Ken when he tried to save Chrome.
Battle with Glo Xinia
Chikusa, along with Ken, makes a cameo appearance during Chrome's battle with Glo Xinia in a flashback. Ken was talking about their secret hiding hole and put gum in it, after which Chikusa commented that gum was not food. Chikusa, along with Mukuro and Ken, makes another appearance during Chrome's battle with Glo Xinia. All three of them appear as Real Illusions made from Chrome, with the help of her Vongola Mist Ring. He has recently appeared alongside Ken and M.M. after Flan freed Mukuro from Vendice. They then escorted Mukuro to Japan to help protect Yuni from Byakuran.
He first appeared when he told Kyoko, Haru, and Bianchi that Chrome disappeared ever since Tsuna and the others comes back from the future. Later when Chrome returns, he notices that Chrome was teary eyed. He pointed this out to Ken, who tries to make her feel better by offering her snacks, to which she refuses, before breaking down and crying. He and Ken tries to figure out what's wrong with her. The next day, he and Ken met Tsuna and his friends outside of Kokuyo Land and informed them about Chrome's return and about her strange behaviour. When they returned, they were shocked to see that the whole Kokuyo building had disappeared. After the building appeared again, he and Ken were about to question Tsuna, but was interrupted by Chrome whom they realized has already returned to normal.
Later, he and Ken fought against Zakuro after they helped Mukuro escape from Vendicare Prison. Chikusa and everyone else were watching the battle between Tsuna and Ghost, and then Tsuna's battle with Byakuran. After Byakuran was defeated, he was seen with Mukuro and Ken, calling out to Chrome, that it's almost time to go back to the past.
He was seen for the first time when he, Chrome, and Ken received a package which contained food from an unknown sender. He wonders who keeps sending the food if it's not Tsuna.
Search for Flan
Chikusa, along with Mukuro, Ken, and M.M went to countryside of France called Jura to recruit Flan into their team. He strained and told Mukuro to calm down when the latter intended to attack Flan out of anger for calling him pineapple fairy. When Mukuro and Squalo managed to stop Flan, he began his insult by calling Chikusa glasses-fairy and his skin is like an eraser, much to Chikusa's annoyance.
1st Day of Representative Battle
Chikusa is then later seen accompanying Mukuro as he went to Namimori to announce to Tsuna his "declaration of war."
2nd Day of Representative Battle
During the second day of Representative Battle of the Rainbow, he, Mukuro, Ken, and Flan ambushed Team Reborn and Team Yuni. He and Ken were disqualified from the battle after their wristwatches were destroyed by Colonnello's Maximum Rifle.
3rd Day of Representative Battle
During the third day of the Representative Battle of the Rainbow, he and Ken rejoined the battle by using the two remaining spare wristwatches, allowing them to assist Mukuro and Team Reborn to fight the Vindice. However, when the Vindice's true form are finally revealed, he, Ken, Yamamoto, and Gokudera were easily knocked down by the Vindice, leaving only Mukuro and Tsuna to fight them. After the third battle was over, Chikusa and Ken was taken back to Kokuyo Land along with Mukuro to treat their injuries.
4th Day of Representative BattleHe and the other Kokuyo Gang members aong with the people Tsuna had talked to gathered at Tsuna's house to discuss plan to defeat Team Bermuda. After the battle was over, he, Ken, and M.M visits Mukuro, Chrome, and Flan at hospital. He is seen beside Ken and Chrome when Hibari destroyes the wall of Mukuro's room.
Chikusa is constantly bickering with Ken due to Ken's mockery towards him. Ken calls him "four-eyed kappa"; sometimes Chikusa is patient and just ignores this, and sometimes they begin to argue. Whenever Ken tries to act reckless or stupid, Chikusa always stops him and apologizes on his behalf for his idiocy (on the Ken Bam-Bam channel, Chikusa apologized to Mukuro for his Ken's stupidity when Ken makes him his guest). He likes to points out Ken's pranks to Mukuro such as when Ken compared Mukuro's or Chrome's hair with pineapple or when Ken lied that he feed Chrome properly while in reality he only fed him chocolate meals, which resulting Ken being punished by Mukuro. Aside from this, he also likes to tease Ken of his dishonesty for Chrome's well-being, which Ken hotly denies. Despite this, however, both could be considered as good partners and childhood friends. Both will work together when the situation demands it, especially whenever Mukuro or Chrome is involved. In an anime flashback of his time in the Estraneo Famiglia when Ken and Chikusa intend to check the room where Mukuro killed his captors, Chikusa hid behind Ken out of fear. This may hint that Chikusa used to rely on Ken when they were children.
Like Ken, Chikusa displays great loyalty for Mukuro and is ready to sacrifice himself for him. Mukuro had saved him and gave him a place to go just like when he desperately tried to help him when he was defeated by Tsuna despite his grave injuries. He doesn't mind even if Mukuro is just using him and obediently carries out his orders. He also always reports to him if Ken starts to pull some pranks and helps Mukuro to punish him, much to Ken's anger and dismay. (In a Haru Haru interview, he helped Mukuro cut Ken's hair into a pineapple hairstyle). Mukuro acts indifferently towards Chikusa, though due to Chikusa's calm nature, Mukuro seems less talk to him than Ken. Despite claiming he and Chikusa are just tools, Mukuro actually tolerates them and even sacrificed himself for them to be imprisoned in Vendicare Prison. In a special light novel in Vongola 77, Mukuro even admitted that they are his friends. So far, Chikusa is the only one of Mukuro's subordinates who's shown to able to restrain him when he loses his temper.Daemon Spade in the Inheritance Succession Arc. He also pretended to not understand who Ken meant when Ken asked about her whereabouts by referring to her as "stupid" or "ugly girl", and only responded when Ken finally used her name, implying that he has a certain degree of respect for her. Chrome regards him as one of her first comrades along with Ken and holds him dear to her.
Appearances in Other Media
He appears in the first chapter of Hidden Bullet: Mukuro's Illusion as a minor character when Mukuro took over Kokuyo Land, as well as in the second volume, Hidden Bullet: 2X-Fiamma, where he appears along with Ken when they first meet Chrome in Japan. He and Ken go to Japan as ordered by Mukuro in their dreams to find "the other him." While searching for Mukuro's "other self," Chikusa argues with Ken about who said that piles of pineapples were talking to him, but Ken laughs Mukuro's laugh, making Chikusa ask him if had he gone crazy. Ken insisted it was true and they started to argue until Ken finally left him alone while Chikusa, like Ken, was actually missing Mukuro a lot, and wanted to see him. When Ken is asleep, he dreams of his childhood when he, along with Chikusa and Mukuro, ran away from Estraneo lab. Even though they were grateful, Chikusa and Ken were still wary of Mukuro until one day they were hungry, and Mukuro went to get some apples for both of them. Since then, they both swore their loyalty to Mukuro and followed him faithfully.
- Hedgehog Yo-Yo: Chikusa uses two Yo-Yos, which he expertly manipulates to rain needles down on his unsuspecting opponents. In the future, his needles are also shown to be coated with rain flames.
- Rain Ring: In the Future Arc, Chikusa is shown to possess a Rain-attribute Ring.
- Chikusa is known as "Kakipi" or "Four-eyed Kappa" to Ken. In a special, the latter also called him a "meatbun," a reference to the hat Chikusa ia always seen wearing.
- Chikusa loves showers and staying clean, and often tells Ken to take a shower himself.
- He dislikes crab because it's hard to eat.
- He has a habit of saying "Mendoi..." (Troublesome...) whenever he feels bothered.
- His favorite music genre is techno.
- He has the same seiyu as Shoichi Irie.
- In Hidden Bullet: 2X-Fiamma, it was shown that Chikusa, like Ken, often compares Mukuro's hairstyle with a pineapple. However, because of his quiet nature and carefulness not to say so aloud, Mukuro was unaware of Chikusa's thoughts.
- His Fandom Shorthand is 49.