The anime adaptation of Masakuni Igarashi's Mayonaka Heart Tune (Tune In to the Midnight Heart) has revealed more cast for its second season, which is set to debut in 2027. Ami Koshimizu and Kaede Hondo join the voice cast as Arisu's sisters.
The new cast
Koshimizu and Hondo are the headline additions, stepping in as siblings to the show's lead, Arisu. It's a modest reveal — a cast pair and a broad 2027 window — but it confirms the second season is moving ahead after the first. The below trailer sets the tone if you're new to the series.
Where it comes from
The series adapts Masakuni Igarashi's manga, and the first season established the cast and setting the sequel now builds on. No exact premiere month, episode count, or streaming partner has been confirmed for season two yet — expect those closer to the 2027 window.
How to read it
Mayonaka Heart Tune sits in the mid-tier on SenpaiRanks, and a second season is a chance for it to climb — sequels often shift a show's Quality axis once the story has room to develop. We'll track season two's reception on both our Consensus and Quality axes as it airs. For what's ranked and airing right now, our best anime to watch in 2026 hub has the current board.
Frequently asked questions
Q: When does Mayonaka Heart Tune Season 2 come out?
A: It's set to debut in 2027; an exact month has not been confirmed.
Q: Who joined the Season 2 cast?
A: Ami Koshimizu and Kaede Hondo join as Arisu's sisters.
Q: What is Mayonaka Heart Tune based on?
A: It adapts Masakuni Igarashi's manga, also known as Tune In to the Midnight Heart.
Q: Is Mayonaka Heart Tune ranked on SenpaiRanks?
A: Yes — it's tracked on both the Consensus and Quality axes, currently in the mid-tier.