Short Annotation:
Matou Shinji was 15 years old accidantally summoned the Heroic Spirit into himself (ofc, he was trolled by Zelretch). This Spirit was Counterguard with strange world view. He help him in Magecraft, but has many scaring secrets.
There are OOC, Lemon (Shinji/Sakura).
Read on russian language
Can somebody translate it?