Man this shit is hot garbage and it's not the isekai-manga kind of garbage
And the author keep playing pull and push on Takt and Minase relationship, whether Minase is really liking Takt or get blackmailed or just Takt's fuckbuddy it's still unclear
yet this is not the first time I saw Minase having hickey
Well in reality, Minase should've been losing her V Card already to Takt with all those atmosphere and how author playing pull and push game to Riku, but who knows, this manga listed as shounen so she might not losing her V Card yet
if I'm in Riku's position I'm not gonna care with Minase anymore, just find another girls, date her, and show dominance to them "childhood friend" bullshit