Part 1: Tooma accidentally discovered his friend Shiomi's secret account. Worried about Shiomi doing porn streams without hiding his face, he talks it through with him, but somehow ends up having sex with him. Seeing how provocative Shiomi is makes Tooma anxious at first, but then he fucks him and finds out that he's very weak to pleasure.

Part 2: Tooma and his nerdy friend Shiomi are now friends with benefits. By now, Tooma has gotten used to it and it's all fun and games, until Shiomi shows up to the hangout wearing a butt plug. Now Tooma is worried about Shiomi, knowing perfectly well how weak to pleasure he is...