Mitsuru Ikeda, president of Greenwood dormitory and Shinobu Tezuka’s closest confidant, navigates life with a blend of playful mischief and quiet introspection. Adopted by the caretakers of Tokyo’s Ikeda temple, his awareness of non-biological roots fostered a lingering detachment from his family, fueling a resolve to forge an identity distinct from their legacy. His uncanny resemblance to Kazuya Hasukawa’s late brother surfaces often in their dynamic, where teasing and relentless challenges mask a deeper intent: to groom Kazuya as his successor, balancing lighthearted antics with an unspoken duty to the dorm’s future.

A unique rapid-healing ability defines Mitsuru’s resilience. When Shinobu’s sister Nagisa kidnaps him to exploit Shinobu, Mitsuru slashes his own face, the wounds vanishing moments later. This act of loyalty not only thwarts Nagisa’s plans but underscores his willingness to sacrifice for those he cherishes.

Beyond Greenwood, his bond with Shinobu deepens as they attend university together, their shared living arrangement sparking amused speculation from peers and family. Yet their relationship remains anchored in mutual trust, with Shinobu’s steady presence tempering Mitsuru’s spirited nature. As dorm leader, Mitsuru masterminds pranks and corrals eccentric residents, his authority veiled in charm, though his past—marked by self-reliance and adoptive-family estrangement—occasionally surfaces in vulnerable glimpses.

Though he resists emotional entanglements, he mentors Kazuya with a blend of stern guidance and genuine care, fostering growth through rigorous trials. Later endeavors, from inter-dorm rivalries to collaborative film projects, reveal his adaptability and commitment to uplifting others, even as his trademark wit persists. While the manga playfully nods to narrative inconsistencies, Mitsuru’s essence endures: a leader cloaked in levity, driven by loyalty, and quietly yearning for a place to belong.