Hmm, i got these list of episodes from
BT. idk if it's official or not though...
2話「ビーター」 'Beater'
3話「赤鼻のトナカイ」 'Red-nosed Reindeer'
4話「黒の剣士」 'The Black Swordsman'
5話「圏内事件」 'Murder Case in the Area'
Good episode order IMO. Murder Case is
really needed since it's packed with asuna x kirito relationship before the time skip..