Haha. I'm going to get killed with my opinion, I think. But yeah, it's Saiouma, the ship between Kokichi Oma (Ultimate Supreme Leader) and Shuichi Saihara (Ultimate Detective) from New Danganronpa V3 : Killing Harmony !

( https://br.pinterest.com/pin/51298883246057265/ )

I honestly don't like this ship in canon. I just find it strange since Shuichi doesn't really like Kokichi while Kokichi is a chaotic liar and manipulator, if he flirts with Shuichi, it's certainly to mess with him. Him being my biggest kin, I think he doesn't actually love him. For me, it doesn't work in either way. However, I still love the wholesome fanon stuff made about them, it's so cute !