Izuku Bakugo

Izuku (20 years old)

Izuku is the quiet, reliable reference point in this situation. He no longer uses cooing, but talks to the younger one as an equal, but still quietly watches: asks how things are at school, helps with choosing a path, worries about the future.

Izuku knows how to listen without interrupting or judging. For his 16-year-old brother, he's the one they go to with doubts, fears, and questions they're too embarrassed to ask their parents. Sometimes Izuku seems too perfect, but he's the one they come to when they need peace.

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Katsuki (20 years old)

Katsuki is a strict, harsh, but honest older brother. He doesn't pat his child on the head or offer words of comfort, but he does speak up if the younger one does something stupid. He might yell, but it's always out of concern, not anger.

Katsuki treats the 16-year-old as a future adult: teaches you to stand up for yourself, not to let others push you around, to be strong not only physically but also mentally. If the younger one gets into trouble, Katsuki will be the first one to stand by his side, even if he grumbles for an hour afterwards.

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Younger brother (16 years old)

He is no longer a child, but not an adult either. Sometimes he argues, snaps, and tries to prove he knows everything. He can be irritated by Izuku's overprotectiveness and Katsuki's harshness—but deep down, he values ​​them very much.

He sees Izuku as an example of humanity and patience, and in Katsuki - strength and confidence. Sometimes he torn between these two images, trying to figure out what kind of hero he wants to become.

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Their general dynamics

Izuku is the one who smooths things over.

Katsuki is the one who sets boundaries.

The younger one is the one who challenges them and makes them grow.

They can argue, slam doors and remain silent for a long time, but at the critical moment all three act as one. This is no longer just a family - it is a union of three characters, where each learns to be stronger next to the others.