Talk:Toaru Kagaku no Railgun SS2: Ability Demonstration Trip/@comment-62.155.170.136-20131026135953/@comment-96.32.88.27-20140618220042

It is canon, having been referenced by both Mikoto herself in the TaKnR Manga (See: Ch49, p23) and by the agent sent to recruit her for the Daihaseisai Opening Ceremony (See: Ch43, p6).

She doesn't seem to be suspicious of the events or anything of that sort after the fact, though (as is par for the course for these side stories, it would seem).

To be honest I can't blame her for not remembering Lessar, though, knowing how much happens in the three months between when the Shopping Mall incident takes place and when Lessar becomes relevant again. Hell, if memory serves, Mikoto doesn't even MEET Lessar again until the start of the Othinus arc (NT Vol8), which is another month later.