Mana Tendou holds the position of student council president at Miryuin Private Academy. She possesses long, curly chestnut hair, blue eyes, and notably has the largest breast size among the main heroines.

Despite her leadership role, Mana exhibits a distinctly childish personality. While typically polite and reserved in daily situations, she becomes highly excitable, outgoing, and loud during large social events or gatherings. This often necessitates intervention from the student council vice-president, Rinka Kunitachi, to restore order.

Mana first met the protagonist, Shougo Mikadono, at a school party where she made a dramatic entrance, loudly encouraging attendees to relax and enjoy themselves, an action that earned her a reprimand from Rinka afterward. She occasionally engages in flirtatious behavior toward Shougo, though this stems purely from her playful, mischievous nature rather than romantic interest. Among the heroines vying for Shougo's attention, both Mana and Mei Sagara harbor purely platonic feelings for him.

No additional background details, character development arcs, or appearances in other media such as OVAs, movies, or spin-offs are documented.