What happens to Ichika after the fated summer ends?
at the end of the last episode kaito's sister returns and brings a Bolivian sweater for ichika but kaito tell her she had to return to to her own country as her transfer had ended we then see remon at mib headquarters with the plans for the interstellar ship and rinon is there with her if you watch till the end of the credits,one year later some students are watching the old class members student film and it shows ichika wearing the Bolivian sweater with some revealing dialog.