Masaki, a man of quiet habits, found himself in an uncomfortable position during a visit to Hiromu's office. Yet, amidst the unease, the presence of baby Hikari remained a constant source of comfort. As Christmas approached, Hikari became c…

Hikari took to the reserved and melancholy neighborhood boy, Yuki. Later, when Masaki fell ill and required isolation, Hiromu and the others made a concerted effort to divert Hikari’s attention from the absence of “Ma-cha.”

Koji, Hiromu’s disapproving father, makes an unexpected appearance at their home, just as the hero Hikari arrives to defend his parents. However, as Koji’s true intentions become clear, will Hikari be able to safeguard his family once more?

With a new sibling on the way, Hikari anticipates the responsibilities of being a big brother with bright enthusiasm. In contrast, Masaki finds himself consumed by anxieties regarding the child’s future. Later that day, the family gathers a…

Hikari strives for a dutiful older brotherly role with Hinata, though he often overexerts himself in the process. Meanwhile, Hiromu’s parents endeavor to compensate for lost time with their son and his family, seeking to rebuild a connectio…

Mustering his resolve, Masaki returned to his hometown, bringing his family and friends with him. However, a sense of unease settled upon the gathering when he encountered his cousin, Kazuhiko.

Masaki concluded his business with Kazuhiko and then led his family to the family plot. Afterward, Hikari set out on an errand of her own, embarking on a small adventure alone.

Hikari longed to befriend the new dog belonging to their new neighbor, but a tremor of fear held him back. The family made another visit to Masaki's uncle, where Kazuhiko attempted, with some awkwardness, to strike up a conversation with Hi…

At the park, Masaki and Hikari met a new neighbor. Mochizuki, a single father, carried the weight of loss for his son, Michiru, following the death of his wife. Seeing his struggle, Masaki offered a hand in support.

Chaos follows the arrival of Matsuo’s younger twin brothers, Yuto and Shuto. Their initial focus is on winning over Hikari, but soon their attention shifts to Yuki and the nature of his connection to their older brother.

Yuki wrestled with the confusing emotions stirring within him regarding Matsuo. Meanwhile, Mochizuki finally found himself with the opportunity to meet Hiromu, though the encounter proved less agreeable than Masaki had envisioned.

Following a discussion with Hiromu, Masaki made an effort to contact Mochizuki, hoping to foster a reconciliation between them.