Recommendations

Both dramas have a historical setting and female leads disguised as men

Both have strong friendship bonds between group of people, and romance. Though Last Friends has dramatic tention as well.

Both have strong friendship bonds between group of people, and and romance as well.

Both are about housewives who realise after years that they can actually chase their dreams before it's too late. Second Time Twenty is a little more serious then Niriko I think, but they are both very sweet.

Both involve two people who used to like each other in the past and after meeting again after a long time, feelings start to develop again.

Similarities:
- Involve about airforce and WWII
- Sacrifice & Romance

Both of these dramas have a similar feel; with one focusing on the mother and the other focusing on the father. Overall themes of family and the relationship between adult-children and their parents.

Both deals with parents raising kids and watching them grow and become independent. Both of their time-settings are in the past.

Both male leads are willing to get hurt or die in order to protect and save the female lead.
Both have female leads that can be cured but that causes more problem for the male leads.
Both are sweet, sad and romantic.

They are both Chinese and the seme are both rich guys.are enjoyable to watch with handsome male leads.Both involves the rich and the poor.you will enjoy the chemistry

Both are Taiga dramas that focus on the life of a prominent female in the Shogunate - who both have extremely strong and straightforward personalities.

Both have lead seeing ghost elements. Both have great chemistry between the leads.

As far as over the top comedy and characters go, these two dorama are similar in taste. The stories are different, but they're both very funny.

Nishiuchi Mariya stars in both dorama as [one of] the main lead[s]. Both shows have over the top comedy and quirky characters.