No no, 123 means Koihime Eiyuutan 1, Koihime Eiyuutan 2, Koihime Eiyuutan 3. They released it part by part, then combined all of them in this one. Its something close to a sequel of moeshouden.
And yeah man I cant forget about Sengoku Koihime X as well, it was such a great game. I actually...