Gavin de Rueda Capinpin (born June 10, 1997), better known by his username Ser Geybin, is a Filipino YouTuber, vlogger, and former teacher.

[1] Gavin de Rueda Capinpin was born on June 10, 1997, at Malolos, Bulacan Philippines to his parents, Elizabeth Reyes De Rueda and Pedro Diaz Capinpin (d. 2021).

[3] He started out as a musician in YouTube and rose to fame in the Philippines by uploading comedy skits and pranks to the platform with his brothers: Allen Capinpin, also known as Chief Allen and Kelzy Capinpin, also known as Capt.

According to Capinpin, he was inspired by fellow content creator Cong TV, who motivated him to start creating vlogs and comedy skits.

[7] He is currently in a relationship with content creator and former teacher Elma Abesamis Asagra.