# Koji Mukai TBS drama production

> Developing situation record from CLSTR: https://clstr.news/situations/koji-mukai-tbs-drama-production
> Updated: 2026-10-23T04:57:07.000Z. Sources: 2. Developments: 2.

During the production of the TBS drama ‘Iroha no Koi wa Jidai wo Kakeru’, Snow Man member Koji Mukai has been featured in various behind-the-scenes updates.

Initial reports highlighted a warm atmosphere on set, including a video of cast members, such as Mone Kamishiraishi and Jutaro Yamanaka, celebrating Mukai’s 32nd birthday with a themed cake. 

Subsequent attention focused on Mukai’s performance and dedication to his role as Seiryu Ichinose. Social media footage revealed that Mukai personally handwrote the vertical text on a blackboard for his character, earning praise from fans for his handwriting skills. Promotional materials featuring Mukai in character have also generated significant viewer interest.

## Timeline

### 2026-10-23: Snow Man's Koji Mukai draws attention for handwritten scenes in TBS drama

Snow Man's Koji Mukai has drawn praise from fans for personally handwriting blackboard scenes in the TBS drama ‘Iroha no Koi wa Jidai o Kakeru’.

2 sources. https://clstr.news/cluster/snow-mans-koji-mukai-draws-attention-for-handwritten-scenes-in-tbs-drama

### 2026-10-08: Koji Mukai celebrated by cast members on drama set

TBS released behind-the-scenes footage of cast members celebrating Snow Man's Koji Mukai's 32nd birthday on the set of the drama ‘Iroha no Koi wa Jidai wo Kakeru’.

2 sources. https://clstr.news/cluster/koji-mukai-celebrated-by-cast-members-on-drama-set

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Cite as: Koji Mukai TBS drama production. CLSTR, https://clstr.news/situations/koji-mukai-tbs-drama-production