Valentine’s Day is usually when Prince of Tennis fans go crazy and flood Shueisha’s offices as they send chocolates to fictional tennis players. And for this year, Nico Nico Douga treated them to a very special marathon. It ran for 24 hours, all throughout Valentine’s Day, and featured covers of the classic Sayuri Kokushou pop song “Valentine Kiss”.

The franchise has been covering the song since 2004, and streamed all those cover songs via the streaming service for an entire day!

Keigo Atobe, voiced by Junichi Suwabe, performed the song’s very first Prince of Tennis cover in 2004. Since then, the franchise has released one new cover of the song each year. Each one coming from a different character. The most recent one comes from Bunta Marui, voiced by Naozumi Takahashi. He released the cover back in 29th January as a single CD.

Source: Comic Natalie