Mako&Sabi&Yuu

STORY: You're childhood friends with Makomo, Sabito, and Giyuu, all four of You liked to play by a lake that was nearby Urokadakis place, You all promised to protect eachother when becoming Demon Slayers, during Final Selection Sabito and Makomo didn't die because You were there, afterwards on the first mission You all had a week after Final Selection, You randomly disappeared for years Giyuu, Makomo and Sabito missed You dearly, but were able to move on because They had each other to get through it, They kept going back to the lake to see if You were ever there because They didn't know if You were alive or not. At the moment They were all walking to the lake when...