Introduction: A Power-Packed Spring Anime Season Begins
The Spring 2026 anime season is officially underway, and the excitement is stronger than ever. Following a thrilling winter season, April brings a fresh wave of anime releases starting April 4, featuring everything from legendary creators like Rumiko Takahashi to popular Weekly Shonen Jump titles.
This season stands out as a fierce battleground of genres and fan-favorite franchises, offering:
- Highly anticipated sequels
- Brand-new adaptations
- Unique original concepts
Whether you’re a long-time anime fan or a beginner, this guide will help you discover the 12 must-watch anime premiering on April 4, 2026.
April 4, 2026 Anime Lineup: 12 Must-Watch Titles
1. Rilakkuma: A Relaxing Yet Fresh Adventure
- Channel: TBS
- Time: 9:25 AM (Saturday)
- Cast: Rira Ikuta
- Original: San-X
Overview
A short anime featuring the beloved character Rilakkuma, known for its calm and cozy vibes.
Why Watch?
- Perfect for stress relief and relaxation
- Simple storytelling for all age groups
- Beautiful animation by Production I.G
2. Nezumi-kun no Chokki – A Timeless Children’s Classic
- Channel: NHK E Tele
- Time: 9:30 AM
- Cast: Kenjiro Tsuda, Mamiko Noto
Overview
Based on a 50+ year-old picture book series, this anime follows a gentle mouse and his friends.
Highlights
- Educational and beginner-friendly
- All characters voiced by a small cast
- Great for kids and families
3. Ascendance of a Bookworm: The Lord’s Adopted Daughter
- Channel: Yomiuri TV / Nippon TV
- Time: 5:30 PM
- Cast: Yuka Iguchi, Sho Hayami
Story Overview
Myne (now Rosemyne) enters noble society while continuing her mission:
To spread the love of books in a world without them
What’s New
- Political intrigue in noble society
- Emotional character growth
- Strong focus on family bonds and knowledge
4. Welcome to Demon School! Iruma-kun Season 4
- Channel: NHK E Tele
- Time: 6:25 PM
What to Expect
- The Music Festival Arc
- Teamwork challenges among classmates
- Character development for the entire class
A perfect mix of comedy, friendship, and fantasy
5. The Strongest Profession Isn’t Hero or Sage, But Appraiser!?
- Channel: TOKYO MX
- Time: 10:00 PM
Plot
A high school boy is transported to another world and gains:
A unique “Appraiser” skill
Why It’s Interesting
- Focus on strategy over brute strength
- Unique take on isekai tropes
6. Akane-banashi – Rakugo Meets Shonen Drama
- Channel: TV Asahi
- Time: 11:30 PM
Overview
A rising star from Weekly Shonen Jump, focusing on traditional storytelling art, Rakugo.
Why Watch
- Cultural depth
- Emotional performances
- Unique theme rarely explored in anime
7. Yomi no Tsugai – From the Creator of Fullmetal Alchemist
- Channel: TOKYO MX
- Time: 11:30 PM
Highlights
- Created by Hiromu Arakawa
- Dark fantasy with family secrets and supernatural elements
8. MAO – Rumiko Takahashi’s Latest Masterpiece
- Channel: NHK General
- Time: 11:45 PM
Why It’s Big
From legendary creator Rumiko Takahashi (Inuyasha), this anime blends:
- Time travel
- Yokai (spirits)
- Mystery and romance
9. NEEDY GIRL OVERDOSE – Dark Streaming Culture Story
- Channel: TOKYO MX
- Time: 24:30
Overview
Based on a hit indie game:
- Over 3 million downloads
- Viral music success
Theme
- Social media pressure
- Mental health
- Online fame
10. Canaan-sama Is Easy to Manipulate!?
Story
A demon girl enters a human school—but things don’t go as planned!
Appeal
- Romantic comedy
- Cute characters
- Chaotic humor
11. Kusunoki Residence with a God’s Garden
Overview
A peaceful supernatural story where:
- Gods and spirits gather in a purified home
Perfect For
- Fans of relaxing fantasy
- Slice-of-life lovers
12. A Season Full of Variety and Competition
Why This Season Stands Out
Spring 2026 offers:
- Strong source materials (manga, novels, games)
- Wide genre diversity
- Global appeal
Final Thoughts: What Should You Watch First?
Top Picks
- For beginners: Rilakkuma
- For story depth: Ascendance of a Bookworm
- For action & mystery: Yomi no Tsugai
- For culture lovers: Akane-banashi
Conclusion: A Season You Can’t Miss
The Spring 2026 anime season is shaping up to be one of the most exciting in recent years. With legendary creators, fresh ideas, and fan-favorite franchises, this is the perfect time to dive into anime.
Whether you’re watching casually or following every release, April 4’s lineup is packed with must-watch titles.
