Ah, apologies that this wasn't clear! You need to play through to Main Ending 10 again, after which, if you have epilogues available, they will be offered to you! Also feel free to use the Skip (fastforward) function when replaying to reach 10, though without taking diversions it should hopefully be a fairly quick route!
Thank you also for your kind comment, and please let me know if this works okay! ❤