After Inori's heat is well and truly over (which takes more than another whole fucking month, and which involves more usage of his lead pipe than an ideal society would need) he feels like he's sufficiently emotionally stable to try to figure out whether he loves Tōkan. He's not really sure where to start, though, so he asks Harutsugu first.
"Oh, um..." And he blushes as his eyes to shiny in nostalgia. "It was love at first sight. He was so brave and strong and handsome, I couldn't help but fall in love~ Then I visited him at his house and gave your gran some cheesecake from that shop you love and..." but Inori has long since stopped paying attention. Useless.
"That's hard to answer," says Kuroji. "I love the way he treats his family, and he's such an attentive guy, and, um." Blush. "I really like how much he loves me..."
Also useless.
If his dads can't help, he's gonna try fiction. He's always steered clear of the romance section in the manga store, but it might hold the answer to his plight. And there's a romantic comedy section? He thought romances were meant to be serious, how can they be comedy as well? But that's a good sign, if there's some way in which romance works that he didn't know then maybe it'll be informative.