[Series]: My Childhood Friend Who I Used to Train Swordsmanship With Became a Slave, so I, as an S-Rank Adventurer, Decided to Buy and Protect Her (Patreon)

Description:

S-Rank adventurer and second-generation sword saint, Ryunoa Styler, is reunited with his childhood friend, Aine, who has been reduced to slavery.
Ryunoa purchases Aine in order to save her, however, she's been given a cursed collar that causes the wearer to go into 'heat' once a day...
Ryunoa's battle to find a way to remove the collar starts now!

- Downloads:
New -> Ch.21: https://drive.google.com/drive/folders/1NaqywqqFtwS4xTsb_bXth2Vg0QAaGyHg?usp=sharing
Ch.20: https://drive.google.com/drive/folders/1MEel0cJv5TOpxgOpBA8QEm6GB9ZUkZ6Z?usp=sharing
Ch.19: https://drive.google.com/drive/folders/1LNKko_BlLB63YXDj9sIdupb8tqfOU7qE?usp=sharing
Ch.18: https://drive.google.com/drive/folders/1VJuE9LXxVa0GxXkn8oTmtdXmRznFK4gk?usp=sharing
Ch.17: https://drive.google.com/drive/folders/12YX_3idOdQlr9-fXeew7lD_xTCQUjcDp?usp=sharing
Ch.1-16: https://gdscans.com/manga/childhood-slave/