Drops of God

Based on manga series "Kami no Shizuku" written by Tadashi Agi, a pseudonym employed by creative team of sister and brother Yuko and Shin Kibayashi, & illustrated by Shu Okimoto (published from November 18, 2004 to June 12, 2014 in manga magazine Morning). The story is told in two parts - the first part focusing on protagonist Shizuku Kanzaki and his rival Issei Tomine on their search of the "Twelve Apostles" wines, and the second focusing on finding the "Drops Of God". A third part of the series serves as short sequel details Shizuku's life after the competition and taking Issei's daughter under his wing.

The protagonists claim that the fictional "Gigon Lignage" grape variety is the only red grape in the World able to produce both white and red wines. This is wrong. Any red grape can be used to create white, rose, or red wines, depending on skin-juice contact (and the duration of said contact).