Tsuna charges at the Strau Mosca. As they trade blows, Tsuna successfully pushes a Strau Moska back. Tsuna then recalls his lesson with Lal Mirch in a flashback, where she reminded Tsuna and his Guardians to not get too close to the Strau Moska, as it was the only way to handle them. However, when Lal Mirch informed them that the Strau Moska was no longer powered on a human life force, Tsuna expressed his relief, so that he wouldn't have to worry about accidentally killing someone.
Back at the present, Tsuna attacks the Strau Moska, but they retaliate with tear gas. Tsuna's intention was to use the X-Burner, but without a platform, he is unable to. Suddenly, the Strau Moska attack again and throw Tsuna hurtling backwards. Spanner comments that it was impressive for Tsuna to use the certain amount of flames he had, when Tsuna attempted to punch the Strau Moska back. However, Tsuna lands in the sewer and sinks, slowly running out of air. Tsuna then bursts out of the water and uses Zero Point Breakthrough: First Edition to block the Strau Moska's way out, but the Strau Moska burst out of the ice using their Dying Will Flames, prompting Tsuna to prepare to use Zero Point Breakthrough: Revised.
*Note: Bold + Italicized = First Appearance