Kukai has appeared in 7 comics from Shogakukan since 1996. The most recent cataloged appearance dates to 2004. Most cataloged appearances come from Flame of Recca.
VIZ Media
33 issues
Shogakukan
Flame of Recca (2003)
Oct 12, 2004
Aug 10, 2004
Jun 16, 2004
Rekka no Honō (1995)
Track what you own and follow the series you read.See what other collectors are picking up.