
Is it by any chance ‘Chocolate Strawberry Vanilla’?
http://www.mangago.zone/read-manga/choco_strawberry_vanilla/

Well, I suppose if you want to look at things from a practical/geographical POV, you'd want to learn the languages that cover most of the planet's surface, so (other than English) I guess that would be, Chinese (mostly because china is huge), Spanish/ (most of central and South America as well as Spain, and Arabic (all of the middle east and Gulf area). Portugese and French are also spoken in more than one or two countries.
If you wanted to learn 3 languages what would it be? Writing and speaking (not counting english) i am from Turkey btw and i like learning languages with their cultures