the inherent tragedy of Q and kazuki’s relationship is that they’re literally orpheus (kazuki) and eurydice (Q)
ojiro being chosen as the heir to the otori family while kazuki manages to escape the facility, ojiro’s mindset from when he was younger being replaced with his desire for strength from his time in the facility = eurydice’s death
kazuki sneaking into minato tribe and all his efforts in the anime to work towards saving ojiro = orpheus’s journey into the underworld
kazuki saving ojiro at the end of the anime after the chiyoda battle and vowing to work towards being better people from here on out = orpheus taking eurydice back
chapter 3 of the game up until ojiro leaves to fight the UDX robot and kazuki didn’t go after him = the journey back to living world
kazuki looking for ojiro at hina cafe, Q showing up and revealing that he has no memories and in his immediate realisation that things have gone very very wrong, kazuki runs back out (literally turning around) to meet zero where he is finally told the news of ojiro’s death = orpheus looking back thus sending eurydice back to the underworld
both tragic stories of love with similar sequencing, and on top of it all what matters most is that orpheus and kazuki went to hell and back for the ones they loved the most (even if you view ojiro and kazuki’s relationship as platonic, there no denying that he cared deeply for ojiro, love is a broad term after all)
