しかshikamo
1.

Indicates that an additional point or piece of information is being added to what has already been mentioned, often emphasizing a contrast or surprising continuation of the discussion.

2.

Conveys the idea that both of two seemingly contradictory conditions or statements can coexist in a particular context, despite typically not being possible at the same time.

3.

Suggests persistence or resilience in light of preceding information, implying that even after a revealing situation, there is still an absence of action or change.

Example:

彼はそれをした、しかも彼女のいる前で。