StreamRecorder has tracked 82 streams for rainbrain on Twitch, with 535h 25m of total airtime across 45 active days. This profile was first tracked on Sep 12, 2026 and was last seen on Nov 10, 2026.
Past Twitch Streams
12 recent streamsrainbrain Twitch Profile Summary
Streaming History
Click a day in the calendar to jump to it
Streaming Activity
Past 90 days
Streaming Insights
-
Most Active Day
5 streams · 20h 50m -
Favorite Streaming Day
Monday -
Most Common Start Time
16:00 -
Tracked SinceSep 12, 2026
-
Last SeenNov 10, 2026
rainbrain Twitch Profile Details
- Platform
- Twitch
- Username
- rainbrain
- Total tracked streams
- 82
- Total airtime
- 535h 25m
- Active days
- 45
- Average streams per active day
- 1.8
- Tracked since
- Sep 12, 2026
- Last seen
- Nov 10, 2026
- Most active day
- 2026-09-25 · 5 streams
- Favorite weekday
- Monday
- Most common start time
- 16:00
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In the bustling world of Japanese Twitch streaming, few creators have managed to build as dedicated a following as Shin Iwasaki, better known by his handle rainbrain. This 37-year-old streamer has carved out a unique niche in the competitive League of Legends streaming scene, drawing viewers not just for his gameplay but for his authentic personality and marathon streaming sessions that can stretch well beyond twelve hours.
What sets rainbrain apart from other League streamers isn't flashy production values or over-the-top reactions—it's his genuine approach to content creation. Broadcasting primarily in Japanese from his home base in Japan, he's built a community of over 140,000 followers who tune in regularly to watch him navigate the challenges of Summoner's Rift. His streams often feel more like hanging out with a skilled friend than watching a performance, creating an atmosphere that keeps viewers coming back for those lengthy gaming sessions that have become his signature.
The foundation of rainbrain's streaming success lies partly in his professional esports background. Before becoming a full-time content creator, he competed as a professional League of Legends player, giving him the deep game knowledge and mechanical skills that serious League fans appreciate. This professional experience shows in his gameplay analysis and decision-making, offering viewers genuine educational value alongside entertainment. His transition from competitive player to streamer represents a natural evolution that many former pros attempt, though few execute as successfully.
Despite streaming in Japanese, rainbrain has managed to attract viewers from across different regions, testament to the universal language of skilled gameplay and engaging personality. His average viewership hovers around 1,000 concurrent viewers, with peak streams reaching over 7,000—impressive numbers that place him among the top Japanese streamers on the platform. The consistency of his audience speaks to the loyalty he's built, with many viewers treating his stream as a regular part of their daily routine.
What makes rainbrain's story particularly interesting is how he's maintained relevance in an increasingly crowded streaming landscape. While newer creators often chase viral moments or trending games, he's stuck to what works: consistent League of Legends content delivered with authentic enthusiasm. His Twitch Partner status and steady growth trajectory suggest that sometimes the most sustainable path to streaming success isn't about reinventing the wheel, but about perfecting your craft and genuinely connecting with your audience. For viewers looking for skilled League gameplay without the manufactured drama that plagues some gaming streams, rainbrain offers exactly what they're seeking.