OMF: At this point, I think Misato now counts as both cruel and unusual punishment for Shinji!
Keisuke-kun: Regarding "Shin-chan", Japanese have a habit of taking one or more syllables off a name and adding -chan. Like "Nakano-san", a girl at the Japanese school I attended, was called "Nacchan".
Shin-seiki: Somehow ADV turned "Shin-chan's Room" into "Shinji's Lovely Suite" in the old (pre-Platinum) version.