Strongest female filler character: Guren

Most Powerful Female Characters In Shonen Anime, Ranked

SADLY THE BEST FEMALE IN NARUTO IS FROM A FILLER ARC : r/Naruto

Who is the best filler character in Naruto, Kosuke, Hotaru, Sora, Guren or Menma? - Quora

Tensei shitara Slime Datta Ken Movie: Guren no Kizuna-hen Episode 1 Discussion (50 - ) - Forums

Seraph of the End: Guren Ichinose: Catastrophe at Sixteen Omnibus, Vol. 3 by Takaya Kagami

You have to opportunity to make one filler character manga canon. Who will you choose? Here are a few of them that I remember (You do not necessarily need to pick one

Owari no Seraph: Nagoya Kessen Hen - Anime - AniDB

Guren - My Anime Shelf

Non-Canon Characters

Sode no shirayuki (Bleach) vs Guren (Naruto Shippuden) - Battles - Comic Vine

Nozomi Kujo vs Guren(Naruto)