Boku no Chikyuu wo Mamotte, Gakuen Heaven Recommendations
'Gakuen heaven' and 'please save my earth' contain much surprises. Both deals with emotional pasts and odd relationships. Both contain a certain level of mystry. There is much profoundness and oddness in the relationship between the main characters. 'Gakuen heaven' comprises of a spiritual and emotional link between the leads while 'please save my earth' comprises of spiritual and pyschic links .
Both are great to watch and are suitable for all ages. Watching both animes will be a great experience.