Yamato Nikaido (二階堂 大和, Nikaidou Yamato ) comes across as very lazy and easy-going, but he is very passionate about what he does and cares a lot about the other members of IDOLiSH7. He took up the position of “Leader” only because he was the oldest in the group, he actually considered pulling himself out of the audition for IDOLiSH7.
Yamato has held a very deep dislike towards the entertainment world in general before joining the agency, And it's implied that he was connected to it himself at some point in the past. Now after he's joined IDOLiSH7, he genuinely enjoys being an idol and cares for the other members of the group.
He can’t actually see much at all without his glasses, is a confrontational drunk, calls himself oniisan (big brother), is weak to honest and hardworking individuals like Riku and Mitsuki, and owns a personal cleaning robot named Musashi.
Thanks to you, I'm able to be here お前さんのおかげで、俺はここにいる Omae san no okage de, ore wa koko ni iru
It's troublesome looking after them, really. あいつらも世話がやけるよな、ほんと Aitsu ra mo sewa ga yakeru yo na, honto
Big brother's going to get the wrong idea? ...Just kidding. お兄さん勘違いしちゃうよ？。。。冗談だよ。 Oniisan kanchigai shichau yo?... Joudan da yo.
When it comes to abs I lose to Tama. 腹筋はタマには負けるよな Fukkin wa Tama ni wa makeru yo na
Good morning. Did you sleep well? おはよ。 よく眠れたか? Ohayou. Yoku nemureta ka?
It's adult time from here on out. ここからは大人の時間だぜ？ Koko kara wa otona no jikanda ze?
(TOUCHING THE CHARACTER)
Hey hey, do you think I'm a kid petting my head like that? おいおい、頭なんか撫でて俺は子供かっつーの Oi oi, atama nanka nadete ore wa kodomo kattsu no
(SS Ranking) Ha ha, I guess you are amazing after all.