For my friend, Trisha...who didnt understand the ending...

A year has passed since Shouto is engaged with Hatsune for some bussiness reasons. And for that whole year, he tried his best to slow down the process of the marriage since he loved the other two men.

Remember when Shouto and Katsuki did the thing? Its because Shouto is freaking depressed about the forced marriage his father had placed upon him. Since then, his father is nagging him about meeting with Hatsune and living under the same roof as hers... that made Shouto feel more stressed.

Then another month passed before Izuku and Katsuki found out the truth behind Shouto's weird actions. And then they do the thing again, this time three of them.  Then he left the two for his demanding father's request to settle some things.

Then, lets go back to the present where Katsuki became a super star and now working with Hatsune for some movie shooting. He is still angry at Shouto thats why he didnt care about meeting him, even though it rips the other half of his heart.

Unexpectedly, Izuku recieved some roses from Shouto with a 'note' that says 'wait for him'...thats where book two approaches.