Here are some recommended completed novels that focus on the theme of redemption and feature male protagonists with real disabilities:
1. "魔鬼的體溫" by 藤蘿為枝: This novel tells the story of a male protagonist who is truly disabled and has no legs below the knees. It is a completed novel with 41,000 words and 103 chapters.
2. "那個不為人知的故事" by Twentine: In this completed novel with 28,000 words and 71 chapters, the male protagonist has had his thighs amputated, resulting in a bittersweet ending.
3. "一筆多情" by Twentine: This short novel with 25,000 words and 75 chapters features a male protagonist who is mute.
4. "寂靜深處有人家" by Twentine: Set in ancient times, this completed novel with 21,000 words and 60 chapters revolves around a male protagonist who is mute, and it has a happy ending.
Please note that these recommendations are based on the provided search results and may not encompass all available novels fitting the criteria.