I typed the title into Google Translate and it translated to "Saiko's Story", maybe Saiko is the Yandere-girl's name? It seems to be a girl name in Japan when I looked it up.
hehe yes i think the name of the girl should be saiko chan as it fits and rhymes with many. to be honest i didnt named her when i made the alpha 1 and launched it but i guess i will let the community make her name and as i see most of them think her name is saiko then so be it then.