Tamon's B-Side Episode 5 Preview | F/ACE Center Battle & Nursing Event

The plot summary and preview images for Episode 5 "RAIN" of the Winter 2026 anime Which Tamon Is It Now!? (Tamon's B-Side) have been officially released! This episode focuses on the intense center position competition within the idol group F/ACE and even hints at the upcoming "Nursing Event" that will make fans' hearts race.

Below are the key points to watch for and a plot analysis for Episode 5.

The Battle for the Center Position in F/ACE's New Song "RAIN" Heats Up

The core conflict of Episode 5 revolves around the center position for F/ACE's new single "RAIN." For an idol group, the center is not only a symbol of glory but also proof of skill and popularity.

The protagonist Tamon Fukuhara and his rival Ouri Sakaguchi clash head-on once again. Tamon's wild and sexy stage presence forms a stark contrast with his gloomy and insecure private self; Ouri is known for his strong confidence. Both are determined to settle the score "fair and square."

The heroine Utage Kinoshita, as the number one fan, is deeply moved, and her perspective represents the audience's voice. This part of the story will showcase the growth and resolve of the F/ACE members as professional idols.

A Heart-Racing "Nursing Event" Suddenly Appears

The latter half of Episode 5 has a major surprise in store. Utage Kinoshita receives a call from an "unexpected person," triggering a classic romantic comedy trope—the "Nursing Event."

In shoujo manga, visiting a sick person is often a key catalyst for deepening feelings, allowing one to see a character's vulnerable and unguarded side (Gap Moe) and creating opportunities for intimate interaction. Based on the preview images and plot context, it is highly likely that either Tamon or Ouri falls ill.

Famous Line Warning: "Tamon-kun is the Center of My Heart"

A line with devastating impact appears in the preview: "Tamon-kun is the center of my heart."

This line is spoken by Utage Kinoshita and perfectly encapsulates the true meaning of "oshi-katsu" (supporting your favorite idol)—no matter how the stage positions change, the "oshi" in a fan's heart will always be the one and only center. This is not only the greatest encouragement for Tamon Fukuhara but also deepens the work's theme about the bond between "idol and fan."

Conclusion

Episode 5 "RAIN" of Which Tamon Is It Now!? combines a passionate career storyline with a sweet romantic plotline. From F/ACE's new song performance to their warm private interactions, there is much to look forward to. Tune in for this week's update to witness the outcome of the center battle and the development of the nursing event!