Episode 4: Respective Pasts

Shiraboshi tries to recruit Takumi to join MONSTRE. Hiro's suspicion towards Takumi grows when he delays responding to the invitation. Takumi's pent-up frustration at Hiro explodes because Hiro has not grown out of his elementary-school mentality, and they have a huge fight. The next day, Hiro does not answer Takumi's call. Takumi knocks on the door of MONSTRE's base...