[Old Saber Lancelot/Gawain] My Father Is a Good Man Who Strictly Upholds the Code of Chivalry

Warning: ※ Arthur is male and Galahad is female, so this really is one yuri couple and one BL couple (x). ※ This should count as a parallel world. I've made some major changes to the characters, especially their backgrounds, out of personal preference. ※ I've borrowed some tropes from commonly circulated versions of the legends, but the plot has been changed. Those who care about historical accuracy, beware. ※ Arthur's sister is based on Tennyson's version. She's his biological sister and won't cause any trouble. If all of the above sounds good, enjoy reading, and happy belated Qixi Festival! Theme: