Toboe howls in remorse after accidentally killing a girl's pet hawk.The wolves quite literally howl in sorrow after finding Toboe's dead body.

At which point Ryuho lets out a wail and collapses, a sobbing wreck. Until Kazuma tells him it's not unmanly to cry. S Cryed: After the only person he calls a friend dies to save him, Ryuho tries to keep his cool.Shinji Ikari from Neon Genesis Evangelion howls in sorrow more than once, specially in the TV series when he discovers that Touji was the pilot of EVA 03 and in End of Evangelion when he sees the remains of EVA 02.Hayate does this in Magical Girl Lyrical Nanoha A's during her Traumatic Superpower Awakening.It's often a source of Narm, as they often sound more like humans screaming or coyotes barking. The dogs of Ginga: Nagareboshi Gin and Ginga Densetsu Weed are known to do this when a fellow soldier dies.She even howls to the full moon, cue the chapter title 'Howling to the Moon'. Erza does this in Fairy Tail after washing ashore when she thought she was finally free from the slave life on an island only to experience that her best friend/love interest turns evil, betrays her, makes all of her other friends slaves again and threatens to kill her and them if she ever tries to rescue them.Given how much he's treated like a dog in the early episodes, it works. In the dub of Digimon Tamers, Guilmon lets one out after Takato leaves him to go to school.In Code Geass, Lelouch sorrowfully howls when Shirley dies.

Howl by D.S. Wrights