The Gray Boy's Plan for a Colorful Adolescence

Haibara Natsuki travels back in time and gets a second shot at a better high school experience.

Where to watch

You cover 0/3 upcoming episodes +3 with the plan · 100%

Your services

With the plan

Not covered

Catalog: all 12 episodes streaming

Hulu

Subscription

3/3 · 12 catalog

Watch

Also available on 2

• 

  Crunchyroll Premium

  Subscription Add

  3/3 · 12 catalog

  Watch
• 

  Prime Video

  Subscription

  3/3 · 12 catalog

  Watch

This show airs a few months a year. Most plans bill you all 12.

Add Crunchyroll Premium

Jun Jul Aug Sep Oct Nov

Subscribe ~1 month · skip the other 5

See your month-by-month plan → Track

Up next

S1 · E2

Dreamlike Days

Fri, Apr 10, 2026