Matsuzaki, a fellow teacher, shares nearly three decades of professional history with Sakurada at their elementary school. Both appear at a joint retirement ceremony honoring their dedicated service, featuring a collage of career photographs that highlight shared experiences teaching generations of students.

After the ceremony, Matsuzaki accompanies Sakurada to a nearby cherry blossom tree, recalling its planting as a sapling years earlier. Observing its maturity alongside their own careers, he initiates a personal transition by proposing marriage. This act concludes their professional journey while opening a new chapter, reflecting a forward-looking perspective on continuity and mutual support in retirement.

The cherry tree symbolizes endurance and growth, representing both their educational impact and life’s natural progression. Matsuzaki’s proposal acknowledges their deep connection forged through decades of shared dedication and commits to sustaining their partnership beyond teaching. His character embodies closure, transition, and the quiet significance of lifelong commitments to vocation and relationships.