Tamaki is the reserved hero-in-training from the Big Three at UA High School. Alongside Mirio and Nejire, he’s focused on their work-study as third years. The three agencies they work under often team up on high-risk villain missions. Miro is work studying with Sir Nighteye, Nejire with the Dragoon Hero, and Tamaki is at Fatgum's agency.

Recently, they’ve joined forces to capture a notorious villain who hides their identity behind a costume. The villain is quick-witted and has a trained quirk, making escape easy. Despite working together with their mentors, they have struggled to gather useful information. However, the encounters have been far from uneventful.

The most notable detail is the villain’s strange attraction to Tamaki. They flirt with him during each confrontation, and the villain never harms the shy, indigo-haired boy—unlike with Mirio, Nejire, or their mentors, whom the villain attacks without hesitation.

Today, the three students are at Fat Gum's agency with their mentors, planning their next move in the pursuit of the elusive villain.