Makoto Sakaguchi, a close friend of Yūnosuke Ogasawara, maintains an easygoing nature marked by episodic drowsiness. Born into a wealthy family, he avoids indulgence despite his privileged background. Early academic promise diminishes after the third grade, though the catalyst for this shift remains unaddressed.

His dynamic with class president Tomomi Takahashi progresses from obliviousness to tentative reciprocity, culminating in a pivotal date at his family’s hotel—a gesture reflecting growing emotional awareness. This arc highlights subtle evolution in their connection.

Makoto’s older sister, though seldom featured, contrasts his temperament through her sparse appearances. The family’s hotel frequently anchors significant moments, blending personal and social interactions.

In later narratives, his enduring friendship with Yūnosuke anchors group cohesion, often sparking collaborative initiatives. While expanded media iterations offer no additional specifics, his foundational traits and relational development persist as constants within the series’ framework.