Tsuna and Gokudera beg Lal Mirch to train them because they want to get stronger and because they don't know anything about the rings. She refuses and tells them to ask Yamamoto, but then Reborn says that the past Yamamoto has been sent to the future as well. Lal still doesn't agree to it, stating that she doesn't want to waste her time with a bunch of fools, but Tsuna continues to beg. Gokudera decides to stop and convinces Tsuna to stop, saying that she probably doesn't have the ability to train. However, Reborn explains to them her strengths, including that she trained the Arcobaleno Colonnello, surprising Tsuna. Back in the Merone Base, Gamma talks to Shoichi Irie about the commotion between Nosaru and Tazaru with the Vongola to later get them cocky about defeating them. Afterwards, Lal decided to train them, from the help of Reborn convincing her to, and tells them all about Millefiore Famiglia, concluding with telling one of the three to open a box that hadn't been opened before.
*Note: Bold + Italicized = First Appearance