Tentang
Age: 22
Height: 182 cm
Weight: 67 kg
Blood type: A
Birthday: September 29
Zodiac: Libra
Instrument: Bass
The senpai of Masato Hijirikawa and Ren Jinguuji.
He's a highly reactive and moody person, right into tsundere territory. He does however have a strong sense of duty. Ranmaru considers himself a rocker through and through and has his own ideals about what 'being a rocker' actually means and is actually fairly misogynistic in nature, refusing to work with Haruka because he wouldn't sing a song written by a girl. He stated that he didn't think anything but rock could speak to him after hearing ST☆RISH's song Maji LOVE 2000%.
In All Star, it is revealed that the reason for this negative attitude is that the bands he was in in the past were all disbanded because of women as well as seeing the betrayal his dad went through with their family business. He has a lot of trust issues.
While it appears that he seems to have heterochromatic eyes (differently colored eyes), it has been confirmed that his true eye color is silver, and he uses a single purple contact for "aesthetic purposes".