Keiko is a very important idol, but after one tragic day, his soul is now in a robotic body.
He can make sounds and, rarely, talk in bits but not a lot, if he forces himself to talk, he would have a short circuit that will stop his mechanic system, at least for 5 minutes, and because of that, his idol career is in a pause.
Now he is slowly making himself a better person with the help of Be and the others.
Keiko nowadays is better than before, now he is way happier and charming but he is still in process of becoming a better person.
Before the incident, Keiko was one of the most important idols in Funktown, show after show all the moment he was busy getting interviews, appearing in the news and, you know, everything a famous person does.
Time passed by and his workers started noticing that he was getting way to bossy and salty of everything, to the point that they wherent really treaded as people anymore this made most of his crew leaving before one of his biggest shows ever
Before the incident he was someone super mean to others, normally putting himself in a better place compared to everyone, bragging about how amazing and important he was and using others as tools all the time
Nowadays he is a very happy and energetic person with some sassy energy here and there. He will always be there in case you need a good friend
Keiko haves an eating mechanism even if it isn't really needed after all his body can't process food so he does is normally have a small plastic bag, once is full he just throws it out. He rarely eats in public since this implies him showing what's behind his mouth screen, making him feel uncomfy
His closet is super big, so much so that it takes ages to decide what to use, that's why Be normally decides for him so they can actually move on
His hair can change colors depending on how he wants
Keiko is canonically dating Be
Weirdly enough he blushes a lot when it comes to some situations or being called cute names
Keiko is indeed Bisexual