Discover these four references in order:
1) Kawasemi, a Junmai Genshu incredibly fruity and sweet.
2) Koi Koi, a Junmai Ginjo very fruity and delicate, with notes of ripe pear and melon.
3) Sayori, a Nakadori Junmai, tense and mineral, with a beautiful length.
4) Kikka, a Junmai Nama Genshu very tasty and powerfull.
Four essential references for exploring sake with guests or discover it by yourself in the best way: Kawasemi, Koi Koi, Sayori and Kikka.