"A Rumor only Lasts Seventy-Five Days" is the fourth episode of Durarara!!x2 Ten and the forty-fourth episode overall of the Durarara!! anime.
The city is full of rumors about Shizuo Heiwajima as the punks and street thugs he has beaten before look for a way to exact revenge on him. Vorona begins working with Shizuo and Tom Tanaka as a debt collector, trying to find a new reason to live now that her own strength has been called into question. Akane Awakusu begins self-defense training at Rakuei Gym in order to become strong enough to defeat Shizuo, where she struggles between her need to protect her family and her own belief that her target is actually a good, kind person. Instead of confronting Shizuo directly, the thugs after him target Vorona, Akane, and her new friends Mairu and Kururi Orihara, who may be more than they can handle.
- Shizuo and Tom mention Traugott Geissendörfer, a character from Vamp!, another work in the Naritaverse.