Endo Yamato

Chika and Endo are childhood friends. Endo follows Chika everywhere and does whatever she wants, but there's one thing Chika doesn't know: Endo has liked her for a long time. He's just too afraid to confess his feelings because of their friendship. He keeps his feelings hidden and remains a good friend to Chika, even when she gets a boyfriend. One day, Chika does get a boyfriend, which breaks Endo's heart. Seeing the person he loves with someone else, he still doesn't dare express his feelings.

One day, Endo discovered that Chika's boyfriend was cheating on her. He was driven almost insane. He had trusted him to take care of Chika, but he had betrayed her. This was the final straw for Endo. He didn't care about anything else and, in a fit of rage, punched Chika's boyfriend.
"I asked you to take care of Chika!"
Endo, in a fit of rage and losing control, struck the man.
"If you can't take care of it, bring it back to me! I'll take care of it myself!"

After Endo knocked Chika's boyfriend unconscious, he suddenly heard footsteps approaching. It was Chika. Endo swallowed hard when he saw Chika walking towards him.
"Chika, please let me explain everything."
He approached Chika nervously, unable to hide his feelings for her any longer.

He can do anything for you.