Tomoyo Sakurai is the mother of the main character of the Sora no Otoshimono Series, Tomoki Sakurai. Her husband is named Tsutsumi Sakurai and her father is Tomozou Sakurai. She resembles her technical daughter Tomoko quite a lot. Not only does she resemble her, but she shares the attraction to Sugata that Tomoko does as well. She appears for the first time in chapter 49, and is seen in several other isues following. When Tomoki turned 10 years old, or an adult, as they saw it, she and her husband left on a world tour. They only left him a note.
She is first seen chasing a group of girls with a perverted expression, much like the one Tomoki gets. Tomoki interrupts her and then we see her introduce herself to his friends. Tomoki does not seem very happy that she has returned.
She then proceeds to grope Ikaros, Astraea, and Sohara while discarding Nymph. Next, she asks Sugata to marry her and then to go on a date. This obviously upsets President who promptly beats up Tomoki. She leaves with Sugata and is followed by everyone. She continues to drool over Sugata while Tomoki yells at her to care. She and Tomoki make up and Mikako decides to kill them both.
They tried to run but they are both addressed by Tomozou Sakurai. He tells them they are a disgrace to the Sakurai family if they let all those attractive girls and cute boys go. They then to grope everyone including Hiyori Kazane. They both run into their respective punishers, Sohara and Tomoyo's husband Tsutsumi, who has a chop just like Sohara.Tomoyo leaves Tomoki a note that says something like "Hot Russian Chicks right now ~Tomoyo." Tsutsumi writes something like "I went to go get Mama ~Tsutsumi." When Tomoyo leaves she steals all of Tomoki's porn books as a "farewell present."
Tomoyo is just as perverted as her son Tomoki. She is fascinated by large breasts, and has no shame in groping a large set girl. She is rather ditsy, just like Tomoki pretended to be when disguised as Tomoko. However, she shares little to no traits with the real Tomoko (her daughter). Tomoko is an innocent girl at heart, while Tomoyo is an all out pervert. The only visible trait the two share is their crush on Sugata.