Talk:Sakuragaoka Joshi Koutou Gakkou Kouka/@comment-11003905-20130618091153

Still looks problematic, because it's kouka not koukka.

Japanese sokuon (geminated or doubled consonants) occurs mostly when a kanji whose reading ends with (1) VC0V is followed by other morpheme starting with C0, or (2) VtV is followed by other morpheme starting with C (where C, V can be any consonant or vowel respectively, and C0 is some consonant). Formation of /rittjaN/ 'Rit-chan' from /ritu/ 'Ritsu' and -/tjan/ is an example of both (1) and (2). So, kanji 校 which is read kou cannot be followed by a sokuon, because kou is CVV. This principle might be of some help when you are in doubt. Of course, there are exceptions, but such cases can be also understood in historical manner (e.g. occurrence of sokuon in compound 十分 jippun~juppun 'ten minutes', which is superficially from 十 juu 'ten' + 分 fun 'minute': note that juu is CjVV so it must not be followed by a sokuon, but 十 was read zifu some hundreds ago...).