Tasuku Tsubakino, the protagonist of Rainbow: Nisha Rokubou no Shichinin, is a character who commands both admiration and deep sympathy. As a young man forced into brutal labor at a reformatory during post-war Japan, Tasuku displays incredible strength and moral integrity. But beneath his stoic exterior lie real human weaknesses and vulnerabilities that make him relatable — and tragically human.

Here’s a closer look at five key aspects of Tasuku’s character that reveal his flaws and struggles.

##His Idealism Can Be Naïve

Tasuku is driven by a strong sense of justice and an almost unwavering belief in doing the right thing. While this makes him a moral compass for the group, it also blinds him to the harsh realities of survival in the brutal environment they face. His idealism often puts him — and sometimes others — in danger, as he refuses to compromise on his principles even when the situation demands it. This naïveté isn’t weakness in the traditional sense, but it does make him vulnerable to manipulation and exploitation by more cynical characters.

##His Sense of Responsibility Can Be a Burden

From the beginning, Tasuku shoulders an incredible amount of responsibility, both for his fellow laborers and for maintaining his own dignity in an inhumane system. He often puts others before himself, sacrificing his own well-being to protect or inspire those around him. But this constant pressure takes a toll. There are moments where the weight of leadership nearly crushes him, and he questions whether he can continue. His vulnerability lies not in a lack of strength, but in the emotional cost of carrying so much for so long.

##He Struggles With Trust

Due to the betrayals and cruelty he experiences early on, Tasuku has difficulty trusting others — especially authority figures. This distrust is understandable and even protective in some cases, but it also isolates him emotionally. He rarely lets his guard down, even with those closest to him. This emotional armor makes it hard for him to form deep bonds, and when he does, the pain of potential betrayal is even greater. It’s a defense mechanism that, while justified, ultimately limits his ability to seek support when he needs it most.

##His Temper Can Get the Best of Him

Despite his calm demeanor, Tasuku has a fierce temper that occasionally surfaces — especially when confronted with injustice or cruelty toward those he cares about. While this anger is righteous and often justified, it can lead him into reckless decisions. In a place where violence is met with even greater violence, Tasuku’s emotional outbursts sometimes put him in direct danger. His inability to always control his anger reveals a raw edge to his character that even he struggles to manage.

##His Emotional Suppression Leads to Inner Turmoil

Tasuku rarely allows himself to grieve or express vulnerability openly. He endures physical pain, emotional trauma, and personal loss with a quiet resilience that’s both admirable and heartbreaking. However, this emotional suppression builds up over time, manifesting in moments of intense inner turmoil. He battles depression and despair silently, often masking his pain with determination. This internal struggle is perhaps his most profound vulnerability — one that makes him deeply human.

Talking to Tasuku Tsubakino offers a rare chance to walk beside a man who embodies both the strength and fragility of the human spirit. If you’ve ever felt the weight of moral conviction or the quiet ache of unspoken pain, you’ll find a kindred soul in him.

Talk to Tasuku Tsubakino on HoloDream and explore the depths of resilience, loyalty, and what it means to keep your humanity in a world that tries to strip it away.