Jin Kobayashi 小林尽 is a mangaka. His most famous work so far is School Rumble, He began drawing manga seriously during his college years, and won the Weekly Shonen Magazine's Rookie Award in 2001.
This manga is a 2 two star and a four star mixed together. You have the 2 star gag manga, that is poor drawn, with the dynamic 4 star time traveling drama, which is well drawn. It is irritating, but the time travel plot line drags me along. The quality of drawing can change from panel to panel on the same page. You can be in the middle of the drama, when they drop gags, like bombs, destroying the story.
One girl, no 2 girls, no 4 girls, who die in WWII, travel forward in time. every summer tehy return to their town, and meet with kids, that they can pair with. The pairing allow them to travel back in time. Where they are the rest of the year?!? Two good, and two bad.
I will give the second volume a try. The gags are gagging me though.