The Birthday Mystery (Subbed)

A 27-year-old recluse emerges when her manga-artist father’s job requires her as a model. She also gets a high school reunion invite.

Sui, a recluse, locks herself in a restroom at her reunion but reconnects with Eda. Kumon wants to add drama to her story, causing panic.

Sui reconnects with her high school soccer team, learns that Yuma married Mizuki, and asks Kumon to pretend to be her boyfriend for dinner.

At dinner, Sui collapses but recovers with Kumon's help. Liliko reveals a shocking truth about the accident, and Yuma hints at Mizuki’s cheating.

In the photo studio, Sui shines while Kumon avoids her. At a meeting, Liliko reveals she sabotaged Sui's romance, uncovering past truths.

The hit manga spurs a hot-spring trip where Kumon reveals Liliko’s confession about the accident. The true 10-year-old secret remains hidden.

Sui is upset by Kumon’s indifference. Mizuki reveals a shocking reason for divorce, and Kumi exposes Kumon’s secret relationship, climaxing the drama.

Sui learns Kumon, who helped her after the accident, has been watching over her. She helps his sister, and Kumon asks Yuma to support Sui.

At a book signing, Kumon is attacked. Sui helps his sister Tsubomi, and Yuma reveals his feelings at the sea. Sui and Kumon find a resolution.