久保 勝

The title giver of the sequel game, Masaru.

His boxing skills are probably at the same level as Yukinojou's, but due to his accident, it'd be quite difficult for him to continue. He was the one who introduced boxing to Yukinojou. They are best friends of each other and eternal rivals at boxing at the same time.

He's basically a huge and lovable idiot, but when it comes to making decisions, he's definitely a guy who'll make firm choices and stick to them. He's not a morning person though and most of the time if his sister, Shouko, or their mom wouldn't wake him up (with various -often violent- methods they devise) then he'd sleep 'till well into the afternoon.

Dislikes studying and loves playing games (including those in the game centers), movies, model toys; one could very well say he's a male version of Serina.