Ashikubi (足首) is an utaite known for his flexible, mid-range, powerful and emotive yet somewhat sultry voice, with a slight (but distinctive), breathy, almost raspy lilt. Though his voice is often described as being "cool" and ikemen, it is also very versatile - ranging from sounding "creepy" and rather unsettling, as seen in covers like "Macaron" and "Ten Sho Sho Ten Sho", to sounding more rough and forceful, as seen in covers like "Jikochuushinteki Kairaku Shugisha no Shikou he no Mousouheki Shoujo no Shikou to Sono Kousatsu" and "Bye-bee Baby Sayounara".
His song choices naturally skew towards high-paced, uptempo, or rock songs, as ballads are an self-admitted weakness of his - despite the fact that his voice itself is also considered to have a fairly calming effect on listeners, he feels that slower songs tend to not suit his singing style. He does occasionally cover more downtempo songs like "Sora no Sakana", however these are usually limited to the works of the producer nekobolo; of which he has covered "Tawagoto Speaker", "Haru ni Kimi to", and "Aishouka Context".
He is quite new to utattemita, having first started uploading in mid-2011. He has participated in many duet and group covers since his debut, and is close friends with fellow utaite MAM, Mimy, KomeYoungTea, and Renoa, all four of whom he has collaborated with multiple times. He is also friends with the producer EZFG, who occasionally mixes for him - however, he usually mixes his own covers in addition to mixing for other utaite.
He prefers to stay secretive about his appearance and other personal details, citing his discomfort when in the public eye; as such, little is known about him aside from what can be gathered from his Twitter feed. Nevertheless, he is an active Twitter user who is known for being sociable and particularly kind to his fans; often personally replying to their tweets and thanking them individually for retweeting or listening to his covers.
"Jikochuu Shinteki Kairaku Shugisha no Shikou he no Mousouheki Shoujo no Shikou to Sono Kousatsu" (A Day-Dreaming Girl's Thoughts and Considerations on the Tastes of Egocentric Hedonists and Other Inquiries) (2012.03.18)
"Kamisama no Yuuutsu" (A God's Melancholy) feat. Ashikubi and KomeYoungTea (2012.04.09)
"Haru ni Kimi to" (In Spring, With You) (2012.04.14)
He likes to claim that he is only 3 years old even though he clearly isn't.
His utaite name is derived from the results of a Twitter-based username generator.
He has stated that one of the best things about being an utaite is that it gives him something to do in his free time.
According to himself, he cannot hold his liquor and gets drunk very easily; stating that when drunk, his face flushes pink and he becomes unable to walk, to the point where Mimy had to physically carry him back to their hotel after one such incident.
Despite his name coming from a random generator, he humorously claims his favorite body parts really are ankles, and that he chose them over wrists because they're "closer to the ground".
Because his name literally means "ankle" in Japanese, his videos are often tagged with the phrase "utau bui" (歌う部位, lit. singing body part), and variations thereof (including "motto medatsubeki bui" - もっと目立つべき部位, lit. body part that ought to be more noticeable, his own personalized spin on the phrase motto hyouka sareru beki). He is also often depicted in fanart barefoot, with disembodied ankles and feet, or as a disembodied ankle and foot.
Early on he often mentioned his mother and her various displays of disdain and/or indifference towards his singing in his uploader comments, to the point where it became a running gag. Because of this, his early covers were occasionally tagged with variations of phrases like "okan ni motto hyouka sareru beki" (おかんにもっと評価されるべき, lit. ought to have more attention from his mom).
He is aware of the slightly raspy quality his voice has, and affectionately calls it his "ossan no hanaiki" (おっさんの鼻息, lit. old man wheezing).
He claims to have a smile fetish, and claims that a smile is his favorite part of a girl's body. In addition, he considers his ideal type to be a considerate person with a cute smile.