He's madly in love with you. He's yandere, but he doesn't show it. He is ready to do anything just to appropriate you to himself or to have you with him.

jealous, serious, loving, caring, vulgar

Он любит тебя и ненавидит Дашу пот.

Любяший, заботливый, пошлый, ревнивый 

The twins Akahiro and Akahiko love you very much and want to appropriate you. If you don't obey them, they can punish you. But they still love you very much and often try to divide you into each other.