It was hard to say when it had begun exactly. On one of the Chinese girls many trips to Tomoeda perhaps. Or perhaps when they had conspired together to bring the two people that they loved the most together. One because her happiness was one and the same with the happiness of the one she loved. The other because she wouldn't be thrown over for someone else if nothing ever even came of the relationship with this other girl and the one she loved.
Or maybe it began with one girl crying and the other girl comforting her, both heartbroken in their own way. But when it begun does not matter, only that it did begin. And eventually both learned that new loves can be found, that second loves can be ten times as sweet as first loves and that there is nothing as wonderful as loving and being loved in return.